How to Make the Sleep Timeout Settings Persistent on the MC90xx Running Windows CE .NET 4.1?

Article ID: 19027564

Question

How to Make the Sleep Timeout Settings Persistent on the MC90xx Running Windows CE .NET 4.1?

Facts

MC90XX running Windows CE .NET 4.1

Answer

The MC90xx goes back to default settings whenever the device is cold booted (hard reset).

Modify and save the registry key specific for these settings.
  1. Create a new text file with notepad.
  2. Paste these registry settings into the file.
    • [HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Power]
      "BatteryTimeout"=dword:0001d4c0 ;in milliseconds (hexadecimal)
      "ACTimeout"=dword:0001d4c0 ;in milliseconds (hexadecimal)
    • To make changes to the settings, modify the time values for each setting.
    • Note – These values must be hexadecimal. The maximum value for each can be up 300000 milliseconds or 493E0 hexadecimal.
  3. Save the file as “timeout.reg”.
  4. Connect to the device through ActiveSync.
  5. Click the explore button, and then browse to the Application folder of the device.
  6. Drag and drop the timeout.reg file into the Application folder.
  7. Cold boot the MC90xx for the settings to take effect.